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双折射材料的温度修正 Birefringent Material Temperature Modification \;KSx3o }Xfg~%6 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: o")"^@Zhi {]dG 9 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline g
rCQ#3K*? rIb~@cR) 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 2vU-9p { h(R7y@mp\0 3.Loop over the baseline material samples and determine the number of wavelength entries { ^^5FE)% ;Yv{)@'Bc 4.Loop over each sampled wavelength entry in the baseline material 0U:X[2|) Hzj8o3 a.Modify the ordinary and extraordinary refractive index values using (2) above w,up`W7, (>E/C^Tc% b.Apply the modified values to the non-baseline material ("F$r$9S <VSB!:ew 5.Set a description on the non-baseline material indicating the temperature change from baseline 'J3yJ{ ` &bF@$(( 脚本编程及GUI例程请下载链接: ,]nRnI^ Wp+lI1t http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs %hN(79:g mZc; n.$U http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd .dVV#
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